Question 1

TORCH is an acronym that represents the most common ______.

Accepted Answer

A)   genera of resident biota
B)   sexually transmitted infections
C)   portals of entry
D)   vectors
E)   infections of the fetus and neonateF) None of the above
G) A) and B)

Question 2

The principal government agency responsible for tracking infectious diseases in the United States is the

Accepted Answer

A)   Centers for Disease Control and Prevention.
B)   World Health Organization.
C)   National Institutes of Health.
D)   United States Department of Agriculture.
E)   Infection Control Committee.F) A) and C)
G) B) and E)

Question 3

Animals that participate in the life cycles of pathogens and transmit pathogens from host to host are ______.

Accepted Answer

A)  fomites
B)  aerosols
C)  mechanical vectors
D)  droplet nuclei
E)  biological vectorsF) None of the above
G) B) and D)

Question 4

Which of the following is not correct terminology used for resident biota?

Accepted Answer

A)   Pathogenic biota
B)   Normal biota
C)   Indigenous biota
D)   Normal microbiota
E)   CommensalsF) B) and C)
G) A) and B)

Question 5

Septicemia means that a pathogen is present and multiplying in the blood.

Accepted Answer

A) True 
 B)False

Question 6

The primary,natural habitat of a pathogen where it continues to exist is called the ______.

Accepted Answer

A)   fomite
B)   carrier
C)   vector
D)   reservoir
E)   sourceF) A) and B)
G) A) and C)

Question 7

Since the 1970s,approximately 40 new infectious disease agents have been discovered,including SARS,chikungunya and zika.The ability of these agents to spread rapidly and cause global concern is due to all of the following except

Accepted Answer

A)   individuals are traveling more frequently and farther distances than in the previous half-century.
B)   communities are becoming more sparsely populated.
C)   communities are spreading into rural areas/wildlife habitats.
D)   communities are becoming more densely populated.E) A) and C)
F) A) and D)

Question 8

Carriers that shed and transmit pathogens a long time after they have recovered from an infectious disease are called ______ carriers.

Accepted Answer

A)  asymptomatic
B)  passive
C)  incubation
D)  chronic
E)  convalescentF) B) and E)
G) B) and D)

Question 9

Each of the following is inoculation of normal biota to a newborn except

Accepted Answer

A)   the birth process through the birth canal.
B)   bottle feeding.
C)   breast feeding.
D)   contact with hospital staff.
E)   All of the choices are correct.F) D) and E)
G) B) and E)

Question 10

Which genus is resident biota of the mouth,large intestine,and within the vagina from puberty to menopause?

Accepted Answer

A)   Lactobacillus
B)   Treponema
C)   Haemophilus
D)   Escherichia
E)   ClostridiumF) All of the above
G) A) and C)

Question 11

The time from when pathogen first enters the body and begins to multiply,until symptoms first appear is the ______.

Accepted Answer

A)   prodromal stage
B)   convalescent stage
C)   incubation period
D)   period of invasionE) C) and D)
F) B) and D)

Question 12

Keratinase has the greatest effect on the ______.

Accepted Answer

A)   respiratory system
B)   gastrointestinal system
C)   urinary system
D)   genital system
E)   skinF) A) and C)
G) B) and E)

Question 13

The greatest number of pathogens enter the body through the ______.

Accepted Answer

A)   respiratory system
B)   gastrointestinal system
C)   urinary system
D)   genital system
E)   skinF) A) and E)
G) None of the above

Question 14

A fetus can get an infection when a pathogen in the mother's blood is capable of crossing the placenta to the fetal circulation and tissues.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is not an antiphagocytic factor?

Accepted Answer

A)   Secretion of slime
B)   Production of leukocidins
C)   Adhering to the host
D)   Secretion of a capsule
E)   Ability to survive intracellularlyF) A) and B)
G) A) and C)

Question 16

The prevalence rate of tuberculosis in one particular county in Texas is 7/1000 people,while the incidence rate for 2011 is 2/1000 people.Analyze this data and summarize the situation.

Accepted Answer

A)   The data were collected incorrectly because the two values should match.
B)   Incidence rate should really be higher than prevalence rate because it includes all new cases for the year.
C)   Prevalence rate is higher than incidence rate because the number of people still alive with tuberculosis is higher because of better treatments.
D)   Prevalence rate and incidence rate cannot be determined for the same disease.E) B) and D)
F) A) and D)

Question 17

An endotoxin is ______.

Accepted Answer

A)   secreted by pathogenic organisms
B)  indicative of gram-negative bacterial infection
C)   secreted by gram-positive organisms
D)   indicative of fungal infections
E)   indicative of viral infectionsF) D) and E)
G) A) and C)

Question 18

Which term-definition pair is mismatched?

Accepted Answer

A)   Fimbriae - adherence to substrate
B)   Capsule - antiphagocytic factor
C)   Coagulase - dissolves fibrin clots
D)   Leukocidins - damage white blood cells
E)   Hemolysins - damage red blood cellsF) A) and E)
G) D) and E)

Question 19

Assume that there are 335,104 new cases of gonorrhea reported among the U.S.population.When calculated,this would be 115.2 per 100,000 or approximately 1 reported case per 1,000 population.The value represents ______.

Accepted Answer

A)   prevalence rate
B)   incidence rate
C)   morbidity rate
D)   mortality rateE) A) and B)
F) All of the above

Question 20

Virulence refers to the degree of pathogenicity manifested by a microbe,not simply whether or not it causes disease.

Accepted Answer

A) True 
 B)False

Exam 13: Microbe-Human Interactions: Health and Disease

The primary,natural habitat of a pathogen where it continues to exist is called the ______.

Correct AnswerverifiedShow Answer

Since the 1970s,approximately 40 new infectious disease agents have been discovered,including SARS,chikungunya and zika.The ability of these agents to spread rapidly and cause global concern is due to all of the following except

Correct AnswerverifiedShow Answer

The greatest number of pathogens enter the body through the ______.

Correct AnswerverifiedShow Answer

Virulence refers to the degree of pathogenicity manifested by a microbe,not simply whether or not it causes disease.

Correct AnswerverifiedShow Answer

Each of the following is inoculation of normal biota to a newborn except

Correct AnswerverifiedShow Answer

TORCH is an acronym that represents the most common ______.

Correct AnswerverifiedShow Answer

Which genus is resident biota of the mouth,large intestine,and within the vagina from puberty to menopause?

Correct AnswerverifiedShow Answer

Which of the following is not correct terminology used for resident biota?

Correct AnswerverifiedShow Answer

Carriers that shed and transmit pathogens a long time after they have recovered from an infectious disease are called ______ carriers.

Correct AnswerverifiedShow Answer

Keratinase has the greatest effect on the ______.

Correct AnswerverifiedShow Answer

An endotoxin is ______.

Correct AnswerverifiedShow Answer

The principal government agency responsible for tracking infectious diseases in the United States is the

Correct AnswerverifiedShow Answer

Which of the following is not an antiphagocytic factor?

Correct AnswerverifiedShow Answer

A fetus can get an infection when a pathogen in the mother's blood is capable of crossing the placenta to the fetal circulation and tissues.

Correct AnswerverifiedShow Answer

Which term-definition pair is mismatched?

Correct AnswerverifiedShow Answer

Assume that there are 335,104 new cases of gonorrhea reported among the U.S.population.When calculated,this would be 115.2 per 100,000 or approximately 1 reported case per 1,000 population.The value represents ______.

Correct AnswerverifiedShow Answer

The time from when pathogen first enters the body and begins to multiply,until symptoms first appear is the ______.

Correct AnswerverifiedShow Answer

The prevalence rate of tuberculosis in one particular county in Texas is 7/1000 people,while the incidence rate for 2011 is 2/1000 people.Analyze this data and summarize the situation.

Correct AnswerverifiedShow Answer

Animals that participate in the life cycles of pathogens and transmit pathogens from host to host are ______.

Correct AnswerverifiedShow Answer

Septicemia means that a pathogen is present and multiplying in the blood.

Correct AnswerverifiedShow Answer

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